WOLFFIA-ARRHIZA (L) WIMMER AND SPIRODELLA-POLYRRHIZA (L) SCHLEIDEN ASTEST PLANT-SYSTEMS FOR TOXICITY ASSAY OF MICROBIALLY TREATED DYESTUFFWASTE-WATER

Citation
P. Kanekar et al., WOLFFIA-ARRHIZA (L) WIMMER AND SPIRODELLA-POLYRRHIZA (L) SCHLEIDEN ASTEST PLANT-SYSTEMS FOR TOXICITY ASSAY OF MICROBIALLY TREATED DYESTUFFWASTE-WATER, Journal of environmental biology, 14(2), 1993, pp. 129-135
Citations number
NO
Categorie Soggetti
Environmental Sciences
ISSN journal
02548704
Volume
14
Issue
2
Year of publication
1993
Pages
129 - 135
Database
ISI
SICI code
0254-8704(1993)14:2<129:W(WAS(>2.0.ZU;2-5
Abstract
Two aquatic plant species, Wolffia arrhiza (L.) Wimmer and Spirodella polyrrhiza (L.) Schleiden were tested for toxicity of the dyestuff was te water containing phenol and methyl violet as the major pollutants. Both the species showed no survival in 1 : 0 (original) and 3 : 1 dilu tions of untreated and treated waste waters indicating toxicity of the dyestuff waste. The plants showed 100% survival in 1 : 3 dilution of microbially treated waste thus indicating reduction in toxicity of the waste after microbial treatment. This was further substantiated by th e growth pattern of the two species which are suggested as test system s for toxicity assay of dyestuff waste water.